EFFECT OF CHEMICAL AND BIO-FERTILIZERS ON QUALITY OF ONION

The present investigation comprising the supplementation of chemical and bio-fertilizers for onion crop was carried out under field conditions at Babasaheb Bnimrao Ambedkar University, Lucknow during rabi season of 2010-2011. The experiment comprised of four levels of chemical fertilizers and six levels of biofertilizers. The maximum ascorbic acid, reducing sugar and total sugars were found with the application of T11 (100 kg N+50 kg P+70 kg K/ha+2 kg/ha Azotobacter+2 kg/ha Phosphobacteria). The maximum TSS, non-reducing sugar, phosphorus and calcium were found under the treatment T12 (100 kg N+50 kg P+70 kg K/ha+2 kg/ha Azotobacter+1.9 kg/ha VAM). The minimum values were found under the control i.e. T1. Results obtained by the application of inorganic fertilizers with biofertilizers exhibited significant effect on various parameters studied under the investigation.